emacs-orgmode@gnu.org archives
 help / color / mirror / code / Atom feed
blob e4511794f5e4dad6d09e60c3abee866d5162d1b3 31926 bytes (raw)
name: lisp/org-attach.el 	 # note: path name is non-authoritative(*)

  1
  2
  3
  4
  5
  6
  7
  8
  9
 10
 11
 12
 13
 14
 15
 16
 17
 18
 19
 20
 21
 22
 23
 24
 25
 26
 27
 28
 29
 30
 31
 32
 33
 34
 35
 36
 37
 38
 39
 40
 41
 42
 43
 44
 45
 46
 47
 48
 49
 50
 51
 52
 53
 54
 55
 56
 57
 58
 59
 60
 61
 62
 63
 64
 65
 66
 67
 68
 69
 70
 71
 72
 73
 74
 75
 76
 77
 78
 79
 80
 81
 82
 83
 84
 85
 86
 87
 88
 89
 90
 91
 92
 93
 94
 95
 96
 97
 98
 99
100
101
102
103
104
105
106
107
108
109
110
111
112
113
114
115
116
117
118
119
120
121
122
123
124
125
126
127
128
129
130
131
132
133
134
135
136
137
138
139
140
141
142
143
144
145
146
147
148
149
150
151
152
153
154
155
156
157
158
159
160
161
162
163
164
165
166
167
168
169
170
171
172
173
174
175
176
177
178
179
180
181
182
183
184
185
186
187
188
189
190
191
192
193
194
195
196
197
198
199
200
201
202
203
204
205
206
207
208
209
210
211
212
213
214
215
216
217
218
219
220
221
222
223
224
225
226
227
228
229
230
231
232
233
234
235
236
237
238
239
240
241
242
243
244
245
246
247
248
249
250
251
252
253
254
255
256
257
258
259
260
261
262
263
264
265
266
267
268
269
270
271
272
273
274
275
276
277
278
279
280
281
282
283
284
285
286
287
288
289
290
291
292
293
294
295
296
297
298
299
300
301
302
303
304
305
306
307
308
309
310
311
312
313
314
315
316
317
318
319
320
321
322
323
324
325
326
327
328
329
330
331
332
333
334
335
336
337
338
339
340
341
342
343
344
345
346
347
348
349
350
351
352
353
354
355
356
357
358
359
360
361
362
363
364
365
366
367
368
369
370
371
372
373
374
375
376
377
378
379
380
381
382
383
384
385
386
387
388
389
390
391
392
393
394
395
396
397
398
399
400
401
402
403
404
405
406
407
408
409
410
411
412
413
414
415
416
417
418
419
420
421
422
423
424
425
426
427
428
429
430
431
432
433
434
435
436
437
438
439
440
441
442
443
444
445
446
447
448
449
450
451
452
453
454
455
456
457
458
459
460
461
462
463
464
465
466
467
468
469
470
471
472
473
474
475
476
477
478
479
480
481
482
483
484
485
486
487
488
489
490
491
492
493
494
495
496
497
498
499
500
501
502
503
504
505
506
507
508
509
510
511
512
513
514
515
516
517
518
519
520
521
522
523
524
525
526
527
528
529
530
531
532
533
534
535
536
537
538
539
540
541
542
543
544
545
546
547
548
549
550
551
552
553
554
555
556
557
558
559
560
561
562
563
564
565
566
567
568
569
570
571
572
573
574
575
576
577
578
579
580
581
582
583
584
585
586
587
588
589
590
591
592
593
594
595
596
597
598
599
600
601
602
603
604
605
606
607
608
609
610
611
612
613
614
615
616
617
618
619
620
621
622
623
624
625
626
627
628
629
630
631
632
633
634
635
636
637
638
639
640
641
642
643
644
645
646
647
648
649
650
651
652
653
654
655
656
657
658
659
660
661
662
663
664
665
666
667
668
669
670
671
672
673
674
675
676
677
678
679
680
681
682
683
684
685
686
687
688
689
690
691
692
693
694
695
696
697
698
699
700
701
702
703
704
705
706
707
708
709
710
711
712
713
714
715
716
717
718
719
720
721
722
723
724
725
726
727
728
729
730
731
732
733
734
735
736
737
738
739
740
741
742
743
744
745
746
747
748
749
750
751
752
753
754
755
756
757
758
759
760
761
762
763
764
765
766
767
768
769
770
771
772
773
774
775
776
777
778
779
780
781
782
783
784
785
786
787
788
789
790
791
792
793
794
795
796
797
798
799
800
801
802
803
804
805
806
807
808
809
810
811
812
813
814
815
816
817
818
819
820
 
;;; org-attach.el --- Manage file attachments to Org outlines -*- lexical-binding: t; -*-

;; Copyright (C) 2008-2022 Free Software Foundation, Inc.

;; Author: John Wiegley <johnw@newartisans.com>
;; Keywords: org data attachment
;; This file is part of GNU Emacs.
;;
;; GNU Emacs is free software: you can redistribute it and/or modify
;; it under the terms of the GNU General Public License as published by
;; the Free Software Foundation, either version 3 of the License, or
;; (at your option) any later version.

;; GNU Emacs is distributed in the hope that it will be useful,
;; but WITHOUT ANY WARRANTY; without even the implied warranty of
;; MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
;; GNU General Public License for more details.

;; You should have received a copy of the GNU General Public License
;; along with GNU Emacs.  If not, see <https://www.gnu.org/licenses/>.

;;; Commentary:

;; See the Org manual for information on how to use it.
;;
;; Attachments are managed either by using a custom property DIR or by
;; using property ID from org-id.  When DIR is defined, a location in
;; the filesystem is directly attached to the outline node.  When
;; org-id is used, attachments are stored in a folder named after the
;; ID, in a location defined by `org-attach-id-dir'.  DIR has
;; precedence over ID when both parameters are defined for the current
;; outline node (also when inherited parameters are taken into
;; account).

;;; Code:

(require 'org-macs)
(org-assert-version)

(require 'cl-lib)
(require 'org)
(require 'ol)
(require 'org-id)

(declare-function dired-dwim-target-directory "dired-aux")
(declare-function dired-get-marked-files "dired" (&optional localp arg filter distinguish-one-marked error))
(declare-function org-element-property "org-element" (property element))
(declare-function org-element-type "org-element" (element))
(declare-function org-inlinetask-goto-beginning "org-inlinetask" ())
(declare-function org-inlinetask-in-task-p "org-inlinetask" ())

(defgroup org-attach nil
  "Options concerning attachments in Org mode."
  :tag "Org Attach"
  :group 'org)

(defcustom org-attach-id-dir "data/"
  "The directory where attachments are stored.
If this is a relative path, it will be interpreted relative to the directory
where the Org file lives."
  :group 'org-attach
  :type 'directory
  :safe #'stringp)

(defcustom org-attach-dir-relative nil
  "Non-nil means directories in DIR property are added as relative links.
Defaults to absolute location."
  :group 'org-attach
  :type 'boolean
  :package-version '(Org . "9.3")
  :safe #'booleanp)

(defcustom org-attach-auto-tag "ATTACH"
  "Tag that will be triggered automatically when an entry has an attachment."
  :group 'org-attach
  :type '(choice
	  (const :tag "None" nil)
	  (string :tag "Tag")))

(defcustom org-attach-preferred-new-method 'id
  "Preferred way to attach to nodes without existing ID and DIR property.
This choice is used when adding attachments to nodes without ID
and DIR properties.

Allowed values are:

id         Create and use an ID parameter
dir        Create and use a DIR parameter
ask        Ask the user for input of which method to choose
nil        Prefer to not create a new parameter

           nil means that ID or DIR has to be created explicitly
           before attaching files."
  :group 'org-attach
  :package-version '(org . "9.3")
  :type '(choice
	  (const :tag "ID parameter" id)
	  (const :tag "DIR parameter" dir)
	  (const :tag "Ask user" ask)
	  (const :tag "Don't create" nil)))

(defcustom org-attach-method 'cp
  "The preferred method to attach a file.
Allowed values are:

mv    rename the file to move it into the attachment directory
cp    copy the file
ln    create a hard link.  Note that this is not supported
      on all systems, and then the result is not defined.
lns   create a symbol link.  Note that this is not supported
      on all systems, and then the result is not defined."
  :group 'org-attach
  :type '(choice
	  (const :tag "Copy" cp)
	  (const :tag "Move/Rename" mv)
	  (const :tag "Hard Link" ln)
	  (const :tag "Symbol Link" lns)))

(defcustom org-attach-expert nil
  "Non-nil means do not show the splash buffer with the attach dispatcher."
  :group 'org-attach
  :type 'boolean)

(defcustom org-attach-use-inheritance 'selective
  "Attachment inheritance for the outline.

Enabling inheritance for `org-attach' implies two things.  First,
that attachment links will look through all parent headings until
it finds the linked attachment.  Second, that running `org-attach'
inside a node without attachments will make `org-attach' operate on
the first parent heading it finds with an attachment.

Selective means to respect the inheritance setting in
`org-use-property-inheritance'."
  :group 'org-attach
  :type '(choice
	  (const :tag "Don't use inheritance" nil)
	  (const :tag "Inherit parent node attachments" t)
	  (const :tag "Respect org-use-property-inheritance" selective)))

(defcustom org-attach-store-link-p nil
  "Non-nil means store a link to a file when attaching it."
  :group 'org-attach
  :version "24.1"
  :type '(choice
	  (const :tag "Don't store link" nil)
	  (const :tag "Link to origin location" t)
	  (const :tag "Attachment link to the attach-dir location" attached)
	  (const :tag "File link to the attach-dir location" file)))

(defcustom org-attach-archive-delete nil
  "Non-nil means attachments are deleted upon archiving a subtree.
When set to `query', ask the user instead."
  :group 'org-attach
  :version "26.1"
  :package-version '(Org . "8.3")
  :type '(choice
	  (const :tag "Never delete attachments" nil)
	  (const :tag "Always delete attachments" t)
	  (const :tag "Query the user" query)))

(defun org-attach-id-uuid-folder-format (id)
  "Translate an UUID ID into a folder-path.
Default format for how Org translates ID properties to a path for
attachments.  Useful if ID is generated with UUID.

When ID is too short (less than 3 chars), return \"__/ID\"."
  (if (< (length id) 3)
      (format "__/%s" id)
    (format "%s/%s"
	    (substring id 0 2)
	    (substring id 2))))

(defun org-attach-id-ts-folder-format (id)
  "Translate an ID based on a timestamp to a folder-path.
Useful way of translation if ID is generated based on ISO8601
timestamp.  Splits the attachment folder hierarchy into
year-month, the rest.

When ID is too short (less than 7 chars), return \"______/ID\"."
  (if (< (length id) 7)
      (format "______/%s" id)
    (format "%s/%s"
	    (substring id 0 6)
	    (substring id 6))))

(defcustom org-attach-id-to-path-function-list '(org-attach-id-uuid-folder-format
						 org-attach-id-ts-folder-format)
  "List of functions parsing an ID string into a folder-path.
The first function in this list defines the preferred function
which will be used when creating new attachment folders.  All
functions of this list will be tried when looking for existing
attachment folders based on ID.

The functions must either return string or nil.  If a function returns
nil, its return value will be ignored when looking for existing
attachment folders.  The first function in the list must always return
string."
  :group 'org-attach
  :package-version '(Org . "9.3")
  :type '(repeat (function :tag "Function with ID as input")))

(defvar org-attach-after-change-hook nil
  "Hook called when files have been added or removed to the attachment folder.")

(defvar org-attach-open-hook nil
  "Hook that is invoked by `org-attach-open'.

Created mostly to be compatible with org-attach-git after removing
git-functionality from this file.")

(defcustom org-attach-commands
  '(((?a ?\C-a) org-attach-attach
     "Select a file and attach it to the task, using `org-attach-method'.")
    ((?c ?\C-c) org-attach-attach-cp
     "Attach a file using copy method.")
    ((?m ?\C-m) org-attach-attach-mv
     "Attach a file using move method.")
    ((?l ?\C-l) org-attach-attach-ln
     "Attach a file using link method.")
    ((?y ?\C-y) org-attach-attach-lns
     "Attach a file using symbolic-link method.")
    ((?u ?\C-u) org-attach-url
     "Attach a file from URL (downloading it).")
    ((?b) org-attach-buffer
     "Select a buffer and attach its contents to the task.")
    ((?n ?\C-n) org-attach-new
     "Create a new attachment, as an Emacs buffer.")
    ((?z ?\C-z) org-attach-sync
     "Synchronize the current node with its attachment\n directory, in case \
you added attachments yourself.\n")
    ((?o ?\C-o) org-attach-open
     "Open current node's attachments.")
    ((?O) org-attach-open-in-emacs
     "Like \"o\", but force opening in Emacs.")
    ((?f ?\C-f) org-attach-reveal
     "Open current node's attachment directory.  Create if missing.")
    ((?F) org-attach-reveal-in-emacs
     "Like \"f\", but force using Dired in Emacs.\n")
    ((?d ?\C-d) org-attach-delete-one
     "Delete one attachment, you will be prompted for a file name.")
    ((?D) org-attach-delete-all
     "Delete all of a node's attachments.  A safer way is\n to open the \
directory in dired and delete from there.\n")
    ((?s ?\C-s) org-attach-set-directory
     "Set a specific attachment directory for this entry. Sets DIR property.")
    ((?S ?\C-S) org-attach-unset-directory
     "Unset the attachment directory for this entry.  Removes DIR property.")
    ((?q) (lambda () (interactive) (message "Abort")) "Abort."))
  "The list of commands for the attachment dispatcher.
Each entry in this list is a list of three elements:
- A list of keys (characters) to select the command (the fist
  character in the list is shown in the attachment dispatcher's
  splash buffer and minibuffer prompt).
- A command that is called interactively when one of these keys
  is pressed.
- A docstring for this command in the attachment dispatcher's
  splash buffer."
  :group 'org-attach
  :package-version '(Org . "9.3")
  :type '(repeat (list (repeat :tag "Keys" character)
		       (function :tag "Command")
		       (string :tag "Docstring"))))

(defcustom org-attach-sync-delete-empty-dir 'query
  "Determine what to do with an empty attachment directory on sync.
When set to nil, don't touch the directory.  When set to `query',
ask the user instead, else remove without asking."
  :group 'org-attach
  :package-version '(Org . "9.5")
  :type '(choice
	  (const :tag "Never delete" nil)
	  (const :tag "Always delete" t)
	  (const :tag "Query the user" query)))

;;;###autoload
(defun org-attach ()
  "The dispatcher for attachment commands.
Shows a list of commands and prompts for another key to execute a command."
  (interactive)
  (let ((dir (org-attach-dir nil 'no-fs-check))
	c marker)
    (when (eq major-mode 'org-agenda-mode)
      (setq marker (or (get-text-property (point) 'org-hd-marker)
		       (get-text-property (point) 'org-marker)))
      (unless marker
	(error "No item in current line")))
    (org-with-point-at marker
      (if (and (featurep 'org-inlinetask)
	       (not (org-inlinetask-in-task-p)))
	  (org-with-limited-levels
	   (org-back-to-heading-or-point-min t))
        (if (and (featurep 'org-inlinetask)
		 (org-inlinetask-in-task-p))
            (org-inlinetask-goto-beginning)
          (org-back-to-heading-or-point-min t)))
      (save-excursion
	(save-window-excursion
	  (unless org-attach-expert
	    (org-switch-to-buffer-other-window "*Org Attach*")
	    (erase-buffer)
	    (setq cursor-type nil
	          header-line-format "Use C-v, M-v, C-n or C-p to navigate.")
	    (insert
             (concat "Attachment folder:\n"
		     (or dir
			 "Can't find an existing attachment-folder")
		     (unless (and dir (file-directory-p dir))
		       "\n(Not yet created)")
		     "\n\n"
	             (format "Select an Attachment Command:\n\n%s"
		             (mapconcat
		              (lambda (entry)
		                (pcase entry
		                  (`((,key . ,_) ,_ ,docstring)
		                   (format "%c       %s"
			                   key
			                   (replace-regexp-in-string "\n\\([\t ]*\\)"
							             "        "
							             docstring
							             nil nil 1)))
		                  (_
		                   (user-error
			            "Invalid `org-attach-commands' item: %S"
			            entry))))
		              org-attach-commands
		              "\n")))))
	  (org-fit-window-to-buffer (get-buffer-window "*Org Attach*"))
	  (let ((msg (format "Select command: [%s]"
			     (concat (mapcar #'caar org-attach-commands)))))
	    (message msg)
	    (while (and (setq c (read-char-exclusive))
                        (memq c '(?\C-n ?\C-p ?\C-v ?\M-v)))
	      (org-scroll c t)))
	  (and (get-buffer "*Org Attach*") (kill-buffer "*Org Attach*"))))
      (let ((command (cl-some (lambda (entry)
				(and (memq c (nth 0 entry)) (nth 1 entry)))
			      org-attach-commands)))
	(if (commandp command)
	    (command-execute command)
	  (error "No such attachment command: %c" c))))))

;;;###autoload
(defun org-attach-dir (&optional create-if-not-exists-p no-fs-check)
  "Return the directory associated with the current outline node.
First check for DIR property, then ID property.
`org-attach-use-inheritance' determines whether inherited
properties also will be considered.

If an ID property is found the default mechanism using that ID
will be invoked to access the directory for the current entry.
Note that this method returns the directory as declared by ID or
DIR even if the directory doesn't exist in the filesystem.

If CREATE-IF-NOT-EXISTS-P is non-nil, `org-attach-dir-get-create'
is run.  If NO-FS-CHECK is non-nil, the function returns the path
to the attachment even if it has not yet been initialized in the
filesystem.

If no attachment directory can be derived, return nil."
  (let (attach-dir id)
    (cond
     (create-if-not-exists-p
      (setq attach-dir (org-attach-dir-get-create)))
     ((setq attach-dir (org-entry-get nil "DIR" org-attach-use-inheritance))
      (org-attach-check-absolute-path attach-dir))
     ;; Deprecated and removed from documentation, but still
     ;; works. FIXME: Remove after major nr change.
     ((setq attach-dir (org-entry-get nil "ATTACH_DIR" org-attach-use-inheritance))
      (org-attach-check-absolute-path attach-dir))
     ((setq id (org-entry-get nil "ID" org-attach-use-inheritance))
      (org-attach-check-absolute-path nil)
      (setq attach-dir (org-attach-dir-from-id id 'try-all))))
    (if no-fs-check
	attach-dir
      (when (and attach-dir (file-directory-p attach-dir))
	attach-dir))))

(defun org-attach-dir-get-create ()
  "Return existing or new directory associated with the current outline node.
`org-attach-preferred-new-method' decides how to attach new
directory if neither ID nor DIR property exist.

If the attachment by some reason cannot be created an error will be raised."
  (interactive)
  (let ((attach-dir (org-attach-dir nil 'no-fs-check)))
    (unless attach-dir
      (let (answer)
	(when (eq org-attach-preferred-new-method 'ask)
	  (message "Create new ID [1] property or DIR [2] property for attachments?")
	  (setq answer (read-char-exclusive)))
	(cond
	 ((or (eq org-attach-preferred-new-method 'id) (eq answer ?1))
	  (setq attach-dir (org-attach-dir-from-id (org-id-get nil t))))
	 ((or (eq org-attach-preferred-new-method 'dir) (eq answer ?2))
	  (setq attach-dir (org-attach-set-directory)))
	 ((eq org-attach-preferred-new-method 'nil)
	  (error "No existing directory.  DIR or ID property has to be explicitly created")))))
    (unless attach-dir
      (error "No attachment directory is associated with the current node"))
    (unless (file-directory-p attach-dir)
      (make-directory attach-dir t))
    attach-dir))

(defun org-attach-dir-from-id (id  &optional try-all)
  "Return a folder path based on `org-attach-id-dir' and ID.
If TRY-ALL is non-nil, try all id-to-path functions in
`org-attach-id-to-path-function-list' and return the first path
that exist in the filesystem, or the first one if none exist.
Otherwise only use the first function in that list."
  (let ((attach-dir-preferred (expand-file-name
			       (funcall (car org-attach-id-to-path-function-list) id)
			       (expand-file-name org-attach-id-dir))))
    (if try-all
	(let ((attach-dir attach-dir-preferred)
	      (fun-list (cdr org-attach-id-to-path-function-list))
              rtn)
	  (while (and fun-list (not (file-directory-p attach-dir)))
            (setq rtn (funcall (car fun-list) id))
            ;; Skip nil return values.
            (when rtn
	      (setq attach-dir (expand-file-name
			        rtn
			        (expand-file-name org-attach-id-dir))))
	    (setq fun-list (cdr fun-list)))
	  (if (file-directory-p attach-dir)
	      attach-dir
	    attach-dir-preferred))
      attach-dir-preferred)))

(defun org-attach-check-absolute-path (dir)
  "Check if we have enough information to root the attachment directory.
When DIR is given, check also if it is already absolute.  Otherwise,
assume that it will be relative, and check if `org-attach-id-dir' is
absolute, or if at least the current buffer has a file name.
Throw an error if we cannot root the directory."
  (or (and dir (file-name-absolute-p dir))
      (file-name-absolute-p org-attach-id-dir)
      (buffer-file-name (buffer-base-buffer))
      (error "Need absolute `org-attach-id-dir' to attach in buffers without filename")))

(defun org-attach-set-directory ()
  "Set the DIR node property and ask to move files there.
The property defines the directory that is used for attachments
of the entry.  Creates relative links if `org-attach-dir-relative'
is non-nil.

Return the directory."
  (interactive)
  (let ((old (org-attach-dir))
	(new
	 (let* ((attach-dir (read-directory-name
			     "Attachment directory: "
			     (org-entry-get nil "DIR")))
		(current-dir (file-name-directory (or default-directory
						      buffer-file-name)))
		(attach-dir-relative (file-relative-name attach-dir current-dir)))
	   (org-entry-put nil "DIR" (if org-attach-dir-relative
					attach-dir-relative
				      attach-dir))
           attach-dir)))
    (unless (or (string= old new)
                (not old))
      (when (yes-or-no-p "Copy over attachments from old directory? ")
        (copy-directory old new t t t))
      (when (yes-or-no-p (concat "Delete " old))
        (delete-directory old t)))
    new))

(defun org-attach-unset-directory ()
  "Remove DIR node property.
If attachment folder is changed due to removal of DIR-property
ask to move attachments to new location and ask to delete old
attachment-folder.

Change of attachment-folder due to unset might be if an ID
property is set on the node, or if a separate inherited
DIR-property exists (that is different from the unset one)."
  (interactive)
  (let ((old (org-attach-dir))
	(new
         (progn
	   (org-entry-delete nil "DIR")
	   ;; ATTACH-DIR is deprecated and removed from documentation,
	   ;; but still works. Remove code for it after major nr change.
	   (org-entry-delete nil "ATTACH_DIR")
	   (org-attach-dir))))
    (unless (or (string= old new)
                (not old))
      (when (and new (yes-or-no-p "Copy over attachments from old directory? "))
        (copy-directory old new t nil t))
      (when (yes-or-no-p (concat "Delete " old))
        (delete-directory old t)))))

(defun org-attach-tag (&optional off)
  "Turn the autotag on or (if OFF is set) off."
  (when org-attach-auto-tag
    (save-excursion
      (org-back-to-heading t)
      (org-toggle-tag org-attach-auto-tag (if off 'off 'on)))))

(defun org-attach-untag ()
  "Turn the autotag off."
  (org-attach-tag 'off))

(defun org-attach-url (url)
  "Attach URL."
  (interactive "MURL of the file to attach: \n")
  (let ((org-attach-method 'url)
        (org-safe-remote-resources ; Assume saftey if in an interactive session.
         (if noninteractive org-safe-remote-resources '(""))))
    (org-attach-attach url)))

(defun org-attach-buffer (buffer-name)
  "Attach BUFFER-NAME's contents to current outline node.
BUFFER-NAME is a string.  Signals a `file-already-exists' error
if it would overwrite an existing filename."
  (interactive "bBuffer whose contents should be attached: ")
  (let* ((attach-dir (org-attach-dir 'get-create))
	 (output (expand-file-name buffer-name attach-dir)))
    (when (file-exists-p output)
      (signal 'file-already-exists (list "File exists" output)))
    (run-hook-with-args 'org-attach-after-change-hook attach-dir)
    (org-attach-tag)
    (with-temp-file output
      (insert-buffer-substring buffer-name))))

(defun org-attach-attach (file &optional visit-dir method)
  "Move/copy/link FILE into the attachment directory of the current outline node.
If VISIT-DIR is non-nil, visit the directory with `dired'.
METHOD may be `cp', `mv', `ln', `lns' or `url' default taken from
`org-attach-method'."
  (interactive
   (list
    (read-file-name "File to keep as an attachment: "
                    (or (progn
                          (require 'dired-aux)
                          (dired-dwim-target-directory))
                        default-directory))
    current-prefix-arg
    nil))
  (setq method (or method org-attach-method))
  (when (file-directory-p file)
    (setq file (directory-file-name file)))
  (let ((basename (file-name-nondirectory file)))
    (let* ((attach-dir (org-attach-dir 'get-create))
           (attach-file (expand-file-name basename attach-dir)))
      (cond
       ((eq method 'mv) (rename-file file attach-file))
       ((eq method 'cp)
        (if (file-directory-p file)
            (copy-directory file attach-file nil nil t)
          (copy-file file attach-file)))
       ((eq method 'ln) (add-name-to-file file attach-file))
       ((eq method 'lns) (make-symbolic-link file attach-file 1))
       ((eq method 'url)
        (if (org--should-fetch-remote-resource-p file)
            (url-copy-file file attach-file)
          (error "The remote resource %S is considered unsafe, and will not be downloaded."
                 file))))
      (run-hook-with-args 'org-attach-after-change-hook attach-dir)
      (org-attach-tag)
      (cond ((eq org-attach-store-link-p 'attached)
	     (push (list (concat "attachment:" (file-name-nondirectory attach-file))
			 (file-name-nondirectory attach-file))
		   org-stored-links))
            ((eq org-attach-store-link-p t)
             (push (list (concat "file:" file)
			 (file-name-nondirectory file))
		   org-stored-links))
	    ((eq org-attach-store-link-p 'file)
	     (push (list (concat "file:" attach-file)
			 (file-name-nondirectory attach-file))
		   org-stored-links)))
      (if visit-dir
          (dired attach-dir)
        (message "File %S is now an attachment" basename)))))

(defun org-attach-attach-cp ()
  "Attach a file by copying it."
  (interactive)
  (let ((org-attach-method 'cp)) (call-interactively 'org-attach-attach)))
(defun org-attach-attach-mv ()
  "Attach a file by moving (renaming) it."
  (interactive)
  (let ((org-attach-method 'mv)) (call-interactively 'org-attach-attach)))
(defun org-attach-attach-ln ()
  "Attach a file by creating a hard link to it.
Beware that this does not work on systems that do not support hard links.
On some systems, this apparently does copy the file instead."
  (interactive)
  (let ((org-attach-method 'ln)) (call-interactively 'org-attach-attach)))
(defun org-attach-attach-lns ()
  "Attach a file by creating a symbolic link to it.

Beware that this does not work on systems that do not support symbolic links.
On some systems, this apparently does copy the file instead."
  (interactive)
  (let ((org-attach-method 'lns)) (call-interactively 'org-attach-attach)))

(defun org-attach-new (file)
  "Create a new attachment FILE for the current outline node.
The attachment is created as an Emacs buffer."
  (interactive "sCreate attachment named: ")
  (let ((attach-dir (org-attach-dir 'get-create)))
    (org-attach-tag)
    (find-file (expand-file-name file attach-dir))
    (message "New attachment %s" file)))

(defun org-attach-delete-one (&optional attachment)
  "Delete a single ATTACHMENT."
  (interactive)
  (let* ((attach-dir (org-attach-dir))
	 (files (org-attach-file-list attach-dir))
	 (attachment (or attachment
		   (completing-read
		    "Delete attachment: "
		    (mapcar (lambda (f)
			      (list (file-name-nondirectory f)))
			    files)))))
    (setq attachment (expand-file-name attachment attach-dir))
    (unless (file-exists-p attachment)
      (error "No such attachment: %s" attachment))
    (delete-file attachment)
    (run-hook-with-args 'org-attach-after-change-hook attach-dir)))

(defun org-attach-delete-all (&optional force)
  "Delete all attachments from the current outline node.
This actually deletes the entire attachment directory.
A safer way is to open the directory in `dired' and delete from there.

With prefix argument FORCE, directory will be recursively deleted
with no prompts."
  (interactive "P")
  (let ((attach-dir (org-attach-dir)))
    (when (and attach-dir
	       (or force
		   (yes-or-no-p "Really remove all attachments of this entry? ")))
      (delete-directory attach-dir
			(or force (yes-or-no-p "Recursive?"))
			t)
      (message "Attachment directory removed")
      (run-hook-with-args 'org-attach-after-change-hook attach-dir)
      (org-attach-untag))))

(defun org-attach-sync ()
  "Synchronize the current outline node with its attachments.
Useful after files have been added/removed externally.  Option
`org-attach-sync-delete-empty-dir' controls the behavior for
empty attachment directories."
  (interactive)
  (let ((attach-dir (org-attach-dir)))
    (if (not attach-dir)
        (org-attach-tag 'off)
      (run-hook-with-args 'org-attach-after-change-hook attach-dir)
      (let ((files (org-attach-file-list attach-dir)))
	(org-attach-tag (not files)))
      (when org-attach-sync-delete-empty-dir
        (when (and (org-directory-empty-p attach-dir)
                   (if (eq 'query org-attach-sync-delete-empty-dir)
                       (yes-or-no-p "Attachment directory is empty.  Delete?")
                     t))
          (delete-directory attach-dir))))))

(defun org-attach-file-list (directory)
  "Return a list of files in the attachment DIRECTORY.
This ignores files ending in \"~\"."
  (delq nil
	(mapcar (lambda (x) (if (string-match "^\\.\\.?\\'" x) nil x))
		(directory-files directory nil "[^~]\\'"))))

(defun org-attach-reveal ()
  "Show the attachment directory of the current outline node.
This will attempt to use an external program to show the
directory.  Will create an attachment and folder if it doesn't
exist yet.  Respects `org-attach-preferred-new-method'."
  (interactive)
  (org-open-file (org-attach-dir-get-create)))

(defun org-attach-reveal-in-emacs ()
  "Show the attachment directory of the current outline node in `dired'.
Will create an attachment and folder if it doesn't exist yet.
Respects `org-attach-preferred-new-method'."
  (interactive)
  (dired (org-attach-dir-get-create)))

(defun org-attach-open (&optional in-emacs)
  "Open an attachment of the current outline node.
If there are more than one attachment, you will be prompted for the file name.
This command will open the file using the settings in `org-file-apps'
and in the system-specific variants of this variable.
If IN-EMACS is non-nil, force opening in Emacs."
  (interactive "P")
  (let ((attach-dir (org-attach-dir)))
    (if attach-dir
	(let* ((file (pcase (org-attach-file-list attach-dir)
		       (`(,file) file)
		       (files (completing-read "Open attachment: "
					       (mapcar #'list files) nil t))))
	       (path (expand-file-name file attach-dir)))
	  (run-hook-with-args 'org-attach-open-hook path)
	  (org-open-file path in-emacs))
      (error "No attachment directory exist"))))

(defun org-attach-open-in-emacs ()
  "Open attachment, force opening in Emacs.
See `org-attach-open'."
  (interactive)
  (org-attach-open 'in-emacs))

(defun org-attach-expand (file)
  "Return the full path to the current entry's attachment file FILE.
Basically, this adds the path to the attachment directory."
  (expand-file-name file (org-attach-dir)))

(defun org-attach-expand-links (_)
  "Expand links in current buffer.
It is meant to be added to `org-export-before-parsing-hook'."
  (save-excursion
    (while (re-search-forward "attachment:" nil t)
      (let ((link (org-element-context)))
	(when (and (eq 'link (org-element-type link))
		   (string-equal "attachment"
				 (org-element-property :type link)))
	  (let* ((description (and (org-element-property :contents-begin link)
				   (buffer-substring-no-properties
				    (org-element-property :contents-begin link)
				    (org-element-property :contents-end link))))
		 (file (org-element-property :path link))
		 (new-link (org-link-make-string
			    (concat "file:" (org-attach-expand file))
			    description)))
	    (goto-char (org-element-property :end link))
	    (skip-chars-backward " \t")
	    (delete-region (org-element-property :begin link) (point))
	    (insert new-link)))))))

(defun org-attach-follow (file arg)
  "Open FILE attachment.
See `org-open-file' for details about ARG."
  (org-link-open-as-file (org-attach-expand file) arg))

(org-link-set-parameters "attachment"
			 :follow #'org-attach-follow
                         :complete #'org-attach-complete-link)

(defun org-attach-complete-link ()
  "Advise the user with the available files in the attachment directory."
  (let ((attach-dir (org-attach-dir)))
    (if attach-dir
	(let* ((attached-dir (expand-file-name attach-dir))
	       (file (read-file-name "File: " attached-dir))
	       (pwd (file-name-as-directory attached-dir))
               (pwd-relative (file-name-as-directory
			      (abbreviate-file-name attached-dir))))
	  (cond
	   ((string-match (concat "^" (regexp-quote pwd-relative) "\\(.+\\)") file)
	    (concat "attachment:" (match-string 1 file)))
	   ((string-match (concat "^" (regexp-quote pwd) "\\(.+\\)")
			  (expand-file-name file))
	    (concat "attachment:" (match-string 1 (expand-file-name file))))
	   (t (concat "attachment:" file))))
      (error "No attachment directory exist"))))

(defun org-attach-archive-delete-maybe ()
  "Maybe delete subtree attachments when archiving.
This function is called by `org-archive-hook'.  The option
`org-attach-archive-delete' controls its behavior."
  (when org-attach-archive-delete
    (org-attach-delete-all (not (eq org-attach-archive-delete 'query)))))

\f
;; Attach from dired.

;; Add the following lines to the config file to get a binding for
;; dired-mode.

;; (add-hook
;;  'dired-mode-hook
;;  (lambda ()
;;    (define-key dired-mode-map (kbd "C-c C-x a") #'org-attach-dired-to-subtree))))

;;;###autoload
(defun org-attach-dired-to-subtree (files)
  "Attach FILES marked or current file in `dired' to subtree in other window.
Takes the method given in `org-attach-method' for the attach action.
Precondition: Point must be in a `dired' buffer.
Idea taken from `gnus-dired-attach'."
  (interactive
   (list (dired-get-marked-files)))
  (unless (eq major-mode 'dired-mode)
    (user-error "This command must be triggered in a `dired' buffer"))
  (let ((start-win (selected-window))
        (other-win
         (get-window-with-predicate
          (lambda (window)
            (with-current-buffer (window-buffer window)
              (eq major-mode 'org-mode))))))
    (unless other-win
      (user-error
       "Can't attach to subtree.  No window displaying an Org buffer"))
    (select-window other-win)
    (dolist (file files)
      (org-attach-attach file))
    (select-window start-win)
    (when (eq 'mv org-attach-method)
      (revert-buffer))))

\f

(add-hook 'org-archive-hook 'org-attach-archive-delete-maybe)
(add-hook 'org-export-before-parsing-functions 'org-attach-expand-links)

(provide 'org-attach)

;; Local variables:
;; generated-autoload-file: "org-loaddefs.el"
;; End:

;;; org-attach.el ends here

debug log:

solving e4511794f ...
found e4511794f in https://yhetil.org/orgmode/87sfk6zixs.fsf@localhost/
found 8509a6564 in https://git.savannah.gnu.org/cgit/emacs/org-mode.git
preparing index
index prepared:
100644 8509a6564967bce2e127014f410b8b2d16de42ba	lisp/org-attach.el

applying [1/1] https://yhetil.org/orgmode/87sfk6zixs.fsf@localhost/
diff --git a/lisp/org-attach.el b/lisp/org-attach.el
index 8509a6564..e4511794f 100644

Checking patch lisp/org-attach.el...
Applied patch lisp/org-attach.el cleanly.

index at:
100644 e4511794f5e4dad6d09e60c3abee866d5162d1b3	lisp/org-attach.el

(*) Git path names are given by the tree(s) the blob belongs to.
    Blobs themselves have no identifier aside from the hash of its contents.^

Code repositories for project(s) associated with this public inbox

	https://git.savannah.gnu.org/cgit/emacs/org-mode.git

This is a public inbox, see mirroring instructions
for how to clone and mirror all data and code used for this inbox;
as well as URLs for read-only IMAP folder(s) and NNTP newsgroup(s).